Countries around the world use growth monitoring and promotion (GMP) as an entry point for preventive care and essential child health, nutrition, and development services, however programs have achieved varying levels of quality and success. Given its ubiquity and legacy, recent efforts have been made to rethink strengthening GMP in light of the Sustainable Development Goals. In particular, to address a persistent gap around counseling, USAID and partners developed a learning agenda building on previous global convenings, a desk review, and listening sessions. This learning agenda informs research and learning investments that will help guide programming and policies to strengthen GMP globally.